zzcnhic 发表于 2017-7-8 05:47:37

ASTM G206 − 11

ASTM G206 − 11
Standard Guide for
Measuring the Wear Volumes of Piston Ring Segments Run
against Flat Coupons in Reciprocating Wear Tests

admin 发表于 2017-7-9 14:19:56

谢谢您的分享,金币已奖励!
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